474 EXPERIMENT STATION EECORD. 



microns in animals on a low nutritive plane to 250 microns in animals in high 

 show condition. 



How an animal grows, H. J. Waters {Qwart. Rpt. Kans. Bd. Agr., 29 {1910), 

 No. 113, pp. 59-86, figs. 7). — This article, on the influence of nutrition on the 

 size and form of animals, is based on the data contained in the article noted 

 above. 



Investigations on the effect of nonprotein compounds on gain in body- 

 protein in ruminants, O. Kellijjer et al. (Lainhv. Vcr.^. ^U(t., 72 {1910), No. 

 6-6, pp. I/Sl'-JfoS). — A daily ration of 300 gm. oat straw, 350 gm. starch meal, 

 250 gm. sugar, 25 gm. crystalline asparagiu, 150 cc. ammonium citrate solution 

 and 6 gm. of salt was fed to 3 lambs, 2 of which not liking the ration were 

 dropped from the experiment. The daily intake of nitrogen of the remaining 

 lamb was about 12.198 gm. During the first week there was a loss of body 

 nitrogen, but thereafter the nitrogen balance remained in equilibrium. At the 

 end of 1 month the amids were replaced by gluten meal, which was fed for 18 

 days. During this period the daily intake of nitrogen was 11.096 gm. The 

 average increase of body nitrogen the last 13 days was 1.93 gm. 



A second experiment was a repetition of the fii-st, except that a third period 

 was added in which both the amids and gluten meal were fed at the same time. 

 The experiment began with 3 lambs, but 1 was dropped as the ration was not 

 relished. The daily body gain in nitrogen of the first lamb was 0.58 gm. in the 

 first period, 2.G4 gm. in the second period, and 4.83 gm. in the third period. 

 With the second lamb there was a daily loss of 1.56 gm. during the first period, 

 a gain of 1.52 gm. in the second period, and a gain of 3.82 gm. in the third 

 period. That the gains of both lambs were so large in the third period indicates 

 that nonprotein nitrogen has some valuable function in the ration and yet can 

 not displace the protein. 



Investigations on maize and maize silage, E. J. Russell {Jour. Southeast. 

 Agr. Col. Wye, 1908, No. 11, pp. JfS^-Hl)- — The average composition of green 

 maize cut about October 1 was dry matter 16.8, nitrogen 1.78, ether extract 0.48, 

 nitrogen-free extract 9.33, fiber 4.21, and mineral matter 1 per cent. The aver- 

 age composition of silage for 6 seasons was dry matter 13, nitrogen 1.45, ether 

 extract 0.4, nitrogen-free extract 5.4, fiber 4.8, and mineral matter 1 per cent. 

 The average loss by chemical changes taking i)lace in the silo was dry matter 

 36, total nitrogen 26, ether extract 16, nitrogen-free extract 55, fiber 8, and 

 furfurol 32 per cent. The loss of protein nitrogen was 55 per cent, and there 

 was a gain of 83 per cent in the nonprotein nitrogen. 



Rye germ, M. Kling {Landw. Vers. Stat., 72 (1910), No. 5-6, pp. 427-^35).— 

 Analyses of pure germ gave the following percentages: Water 14.7, water- 

 soluble protein 9.5, water-insoluble protein 26.18, amids 3.82, total protein 39.5, 

 free fatty acids 1.74, total fat 10.57, pentosans 6.86, nitrogen-free extract 27.99, 

 fiber 2.24, calcium oxid 0.05, phosphoric acid 2.97, and total ash 5. No starch 

 was found. 



The rye germ as it left the meal contained only 60 to 70 per cent pure rye 

 germ, the rest consisting of weed seeds, chaff, and other wastes. Two chemical 

 analyses gave the following averages : Water 15.5, crude protein 28.7, pure 

 protein 25, fat 7.9, nitrogen-free extract 36.1, fiber 6.7, and ash 5.1 per cent. It 

 is stated that some pigs fed for 6 weeks on rye germ became sick and some died, 

 though it is not known definitely whether the trouble was due to the rye or 

 some other cause. 



Concentrated commercial feeding stuffs, W. J. Jones, Jr., et al. {Indiana 

 Sta. Bui. lU, pp. /67-////CI).— This contains the text of the state feeding stuffs 

 law, rulings which have been made under it, and similar data. Analyses are 

 reported of 2,702 samples of feeding stuffs, including the by-products of wheat. 



